An idea that just popped into my head:
Can someone make a mod that will make HK-51s, Mandalorians or Republic Troops (or all of them) to follow you around and help you at the battle of Telos at the end of the game?

Ookay, on second though, that's not quite what I meant. What I meant was something like a mini-story. Say, when you are beginning the Telos Attack part, while Mandalore leaves, he tells 3 Mandalorians to escort you. Suddenly, 3 HK-51s appear out of nowhere. The Exile is ready to fight them, but stops when (s)he finds out that those HKs are sent by 47 to help her in the upcoming battle. Also, when you speak to that Republic officer, instead of having him hold position, you could order him and his men to follow you around to help.